Compact vacuum and sander

Patent metadata

Field	Value
Publication number	US-9107550-B2
Application number	US-201314039438-A
Country	US
Kind code	B2
Filing date	Sep 27, 2013
Priority date	Sep 27, 2013
Publication date	Aug 18, 2015
Grant date	Aug 18, 2015

Abstract

A vacuum may include a housing, a filter, a motor-fan assembly, and a flue. The housing defines a chamber having a circular cross-section. The filter may have an annular shape and is disposed in the chamber of the housing. The motor-fan assembly includes a motor drivably coupled to a fan, such that the fan is mounted above the motor. The motor and the fan are enclosed in a casing, and the casing is disposed in an opening of the filter. The fan draws air into the chamber via the intake port and upward through the filter into the casing of the motor-fan assembly. The flue defines an exhaust path from the casing to the exhaust port, whereby air drawn into the casing is discharged via the flue outside the chamber of the vacuum.

First claim

What is claimed is:

1. A vacuum comprising:
a housing defining a chamber having a circular cross-section and defining an intake port and an exhaust port;
a filter having an annular shape with an opening defined at a center of the filter and being disposed in the chamber of the housing;
a motor-fan assembly having a motor drivably coupled to a fan, such that the fan is mounted above the motor, the motor and the fan are enclosed in a casing, and the casing is disposed in the opening of the filter, wherein the casing is fluidly coupled to the chamber and the fan is configured to draw air into the chamber via the intake port and upward through the filter into the casing of the motor-fan assembly; and
a flue defining an exhaust path from inside of the casing to the exhaust port, whereby air drawn into the casing is discharged via the flue outside the chamber of the vacuum.

2. The vacuum of claim 1 , wherein the housing has an upper portion and a lower portion, the upper portion has a first diameter, the lower portion tapers inwards towards a center of the chamber to a second diameter, and the first diameter is greater than the second diameter.

3. The vacuum of claim 1 further comprising:
a door;
a hinge pivotably coupling the door to the housing at one end of the door; and
a lock detachably coupling the door to the housing at a second end of the door opposite of the hinge; wherein
the housing includes a base that defines an outlet, and
the door covers the outlet when the lock couples the door to the housing and uncovers the outlet when the lock decouples the door from the housing and the door pivots away from the outlet via the hinge.

4. The vacuum of claim 3 further comprising:
an actuator coupled to the lock, wherein the actuator decouples the lock from the door when the actuator is engaged.

5. The vacuum of claim 1 , wherein the flue couples a portion of the casing which holds the motor to the exhaust port.

6. The vacuum of claim 1 , wherein the exhaust port is arranged at a 45 degree angle from an upper surface of the housing.

7. The vacuum of claim 1 wherein the flue couples a portion of the casing which holds the motor to the exhaust port.

8. The vacuum of claim 1 further comprising:
a filter casing having an annular shape and being disposed within the chamber, wherein the filter casing houses the filter and extends circumferentially around an outer surface of the filter.

9. The vacuum of claim 1 , wherein
the housing has an upper portion that has a first diameter and a lower portion that has a decreasing diameter from the first diameter to a second diameter, the first diameter is greater than the second diameter, and
the housing defines an outlet at a location that has the second diameter.

10. A vacuum comprising:
a housing defining a chamber having a circular cross-section and defining an intake port and an exhaust port;
a filter having an annular shape with an opening defined at a center of the filter and being disposed in the chamber of the housing;
a motor-fan assembly having a motor drivably coupled to a fan, such that the fan is mounted above the motor, the motor and the fan are enclosed in a casing, the casing defining a first aperture at an upper portion of the casing adjacent to the fan and a second aperture at a lower portion of the casing adjacent to the motor, and the casing being disposed in the opening of the filter, wherein the casing is fluidly coupled to the chamber and the fan is configured to draw air into the chamber via the intake port and upward through the filter into the casing of the motor-fan assembly via the first aperture; and
a flue which fluidly couples the second aperture of the casing to the exhaust port, whereby air drawn into the casing is discharged via the flue outside the chamber of the vacuum.

11. The vacuum of claim 10 , wherein
the housing has an upper portion that has a first diameter and a lower portion that has a decreasing diameter from the first diameter to a second diameter, the first diameter is greater than the second diameter, and
the housing defines an outlet at a location that has the second diameter.

12. The vacuum of claim 11 further comprising:
a door disposed at the outlet of the housing;
a hinge pivotably coupling the door to the housing at one end of the door; and
a lock detachably coupling the door to the housing at a second end of the door opposite of the hinge; wherein
the door covers the outlet when the lock couples the door to the housing and uncovers the outlet when the lock decouples the door from the housing and the hinge pivots the door away from the outlet.

13. The vacuum of claim 12 further comprising:
an actuator coupled to the lock, wherein the actuator decouples the lock from the door when the actuator is engaged.

14. The vacuum of claim 10 , wherein the flue extends from the second aperture to the exhaust port.

15. The vacuum of claim 10 further comprising:
a filter casing having an annular shape and being disposed within the chamber, wherein the filter is housed in the filter casing, and the filter casing extends circumferentially around an outer surface of the filter.

16. A system comprising:
a sander configured to remove surface material from an object and adapted to receive a hose; and
a vacuum fluidly coupled to the sander and configured to draw in air and the surface material removed by the sander, the vacuum including:
a housing defining a chamber having a circular cross-section and defining an intake port and an exhaust port, wherein the intake port is adapted to receive the hose and the sander is coupled to the intake port via the hose,
a filter having an annular shape with an opening defined at a center of the filter and being disposed in the chamber of the housing,
a motor-fan assembly having a motor drivably coupled to a fan, such that the fan is mounted above the motor, the motor and the fan are enclosed in a casing, and the casing is disposed in the opening of the filter, wherein the casing is fluidly coupled to the chamber and the fan is configured to draw the air and the surface material into the chamber via the intake port, and to draw the air upward through the filter into the casing of the motor-fan assembly, and
a flue defining an exhaust path from inside of the casing to the exhaust port, whereby air drawn into the casing is discharged via the flue outside the chamber of the vacuum.

17. The system of claim 16 , wherein the flue couples a portion of the casing which holds the motor to the exhaust port.

18. The system of claim 16 , wherein the flue couples a portion of the casing which holds the motor to the exhaust port.

19. The system of claim 16 further comprising:
a filter casing having an annular shape and being disposed within the chamber, wherein the filter casing houses the filter and extends circumferentially around an outer surface of the filter.

20. The system of claim 16 , wherein
the housing has an upper portion that has a first diameter and a lower portion that has a decreasing diameter from the first diameter to a second diameter, the first diameter is greater than the second diameter, and
the housing defines an outlet at a location that has the second diameter.

Assignees

• Black & Decker Inc

Inventors

• Sergyeyenko Oleksiy
• Miller David A
• Cooper Joseph B
• Poole Brian

Classifications

• A47L5/24

  Hand-supported suction cleaners · CPC title

• A47L7/0095 Primary

  Suction cleaners or attachments adapted to collect dust or waste from power tools · CPC title

• B24B55/10

  specially designed for portable grinding machines, e.g. hand-guided · CPC title

• A47L9/0054

  Stands or the like for temporary interruption of work · CPC title

• A47L9/106

  Dust removal · CPC title